Heel



July 10, 1928. 1,676,262

J. B. HADAWAY HEEL Filed Dec. 4. 1922 2 sneets-shet 1 WW 'ww v W July 10, 1928. 1,676,262

J. B. HADAWAY HEEL Filed Dec. 4, 1922 2 Sheets-Sheet 2 //\/l/E/\/ TUE. Fig. 5.

' in shoe'factories a-h'eelbase and 'a rubber lift which is sufficiently curvedto produce tight edge joint without theaidof cement,

Patented July 10, 1928.

UNITE T-Es PATENT oFFlC-E. 1

Joan E. HAnAwAioE swA Psootr'r, MAssA'oH sE'r'rs assrenon 'r o UNI IE SHOE MACHINERY CORPORATION, 01? PATERSON, ,NEW JERSEY, A CORPORATION or NEW' JERSEY.

HEEL;

Divided and this application filed December 4, 1922. Serial No, 604,761.

This invention relates to cushion heels,

' and has for-its object to provide an improved composite heel capable of economical and perfect attachment by machinery.

attachment by machinery at asingle nailing operation without the use of the cement which has heretofore been used with machine attached heels. In this connection animportant feature of the invention resides in the combination with a rigid base section having a fiatouter face of a rubber top section having a curved" inner face, the two sections being secured together in registered relation by one or more nails. This mechanical combination of a curved rubber lift with a rigid base makes practicable for the first time to attach by singlenailing withthe ordinary commercial heeling machines used suchcurved rubber lifts having been heretofore attached separately by hand.

A further feature of the invention relates to a composite heel construction which provides for easy and'exact' registering of 'the" two sections of the heel. In the illustrated embodiment'of the invention this is accomplishedby providing'the two sections of the heel respectively with registering recesses and projections of shapes whichare anguface and the rubber section has correspond- 40 p rojections and recesses that'thediagonal ingly located, frusto-pyramidal projections on its adjacent contacting face. I have found'it advantageous so to proportion the of the base of the projection is greater than the diameter of the recess. The yielding quality of the rubber,however, permits the projection easily to be forced into the recess,

the surplus yielding material being-easily ac commodated; becausethe shorter cross-'sec- Q'tional dimension of theprojecti'on is less. thanthe diameter of therec'ess. Ithas been:

demonstrated in practice that the registration of'the two parts of the heel is veryeas 7 heel constructed in accordance with'thisi ily and accurately accomplished, when the two parts of the heel they may be sufliciently al application filed July 25, 1921, Serial in. 487,314. Patent No, 1,617,049, dated rebruarjaieaa secured together by one or more tacksor nailsfto permit the'compositerheel to beliandled and the necessity-for cementing th'e two sections; together [is eliminated.--;A {novel composite heelis thus produced which has no cement'between the base and rubber section, the rubber section being secured to the base onlyby nails. r l

The above and other featuresand advantages of the invention will be more clearly" understood fromreading the following de taileddescriptionof one embodiment thereof in connection with the accompanying drawings, in .jwhich v c Figure 1 is a-perspective view of a cushion heel made in accordance with the invention, portlonsbemg broken away to illustrate the =construct1on and arrangement Fig". '2 is an exploded viewshowing the underside of the cushion heel sectiona'nd the top of afbase section,- which have -been assembled to-form a composite heel and separated by breaking the assembling na'ils'q- I Fig. 3 is a, sectional view showing-the heel attached to a shoe at a single nailing,thesectio'nbei-ngtaken along the line 3, 3 o fFiga;

Fig. 4 is-a perspective View of they'heel portion of a shoe, showing the wornrubber section-removed preparatory to the attachment ofa new rubber" section; and

Fig: 5' is a View similar to Fig.4, inns tratinglgwliat occurs when it-"i's attempted to remove an ordinary rubber heel, attached '90 at a single nailing Referring now to the drawings, 10 indicates a rubber heel section of'lift, andf12' indicates a rigidbas'e section which may; be built of leather, leath'erboardg'or other suitable-material. j I 11 The rubber-section 10 is preferably of uniform thickness throughout and consists of a; central, flat. portion and a curvedjedge portion- 14 extending around the periphery bftliefiat portion, with the exception'of the breast edge." The heel thus constru'ctedfis, ineiiect, concave upon itsinneror contact-1 ingfaceand convex-upon its outer-ortread face but becomes flattenedwlien it" is pressed upon a shoe and, by reason 'of thenormally inwardly eurved marginal portion 14, a tight joint around the edge is assured without the necessity of resorting to cement. On the inner face of the rubber lift are formed two frustopyramidal projections 16 which are shownas square in crosssection and the tops of which lie in approximately the same plane as the edge 18 formed by the intersecthe nails are be driven.

tion of the inner face of the curved periphery of the lift.

Inythe tread face of the lift are formed a plurality of approximately conical holes ordepressions 20! arranged in a regular design and indicating or designating the nail ing locations, that is to say, the places Where Washers 22 are embedded in the rubber at certain of the designated nailing locations and omitted in certain others of said locations, as will be explained in more detailhereinafter Contrary to the usual practice the bottoms of the depressions 20 are completely closed or imperforate, there being a substantial thick ness of rubber between the bottoms of those depressions whichhave washers in register pins in the vulcanizing mold in which the .heel is manufactured, which are usually to be found in the tread face of a rubber heel are, in this instance 1n its inner face, and by reference to Fig. 2, wherein these holes are indicated by the reference numeral 26, the

locations of the washers 22 in the heel section may be readily determined, it being understoodthat there is such a washerin alinement with each of the said holes. By

comparison of Figs. 1 and 2, it will be seen that certain ofthe designating depressions 20 have washers, while certain others,

suchas the one shown at 25 in Fig. 1, have no washers. the rubber beneath the latter being unbroken, as illustrated at 27. j

In the outer face of the base section 12 are two cylindrical recesses 28 corresponding to the projections 16 on the contiguous face of the rubber section 10. The top of the pyramidal projection 16 is preferably slightly smaller in every horizontal dimension than the diameter ofthe recess 28 but the diagonal of the base of the projection is slightly greater than the diameter of the recess, with the result that the projection will enter the recess,readily, while contact of the projection..

with the walls oftherecess is insured and consequently accurate IGglStGPOf the rubber section-and the basesection is secured. F urthermore, the material of theprojections 16 being of a yielding nature, the accuracy of the registration is practically unafiected by shrinkage or expansion of the recesses 28 due to various conditions of temper of the base section of the heel.

The sections 10 and 12 may be assembled Fig. 5 illustrates ing the particular washers nearest the projections 16 for these nailsany dangerof the projections beingpulled out of the recesses 28 by the natural tendency of the rubber heel'to spring away from the base is avoided.

Such a contingency, of course, would involve danger of destroying the proper register of the two heel sections.

Assuming the composite heel to have been assembled, as above described, it is ready for attachment to a shoe. This heel is perfectly adapted for attachment by commercial heeling machinery, all the. nails being driven at a single operation. The nails may be of different lengths, the longer ones being shown at 32 and the shorter ones at 34. The'short nails 34; are driven through the bottoms of the cavities 25 beneath which there are no washers and are driven completely through the rubber section until their heads are seated on the outer faceof the base section 12, their points being clinched in the insole 36. The longer nails 32 are driven through the washers 22 until their heads are seated in the washers and their points are also clinched in the insole. As the nails are driven they cut their way through the rubber and when the heeling machine drivers all are withdrawn the rubber, in resuming its normal condition, closes over the heads of the nails, as indlcated at 38, effectually and completely concealing them from view. A

blind nailed rubber heel of pleasing appearthere will, therefore, be four of the nails 3 1 which serve to attach the base section 12 to the outsole 10, upper 42 and insole 36.

of the shoe. These nails g has previously stated, serve only base attaching nails and play no part in securlng the rubber section 10. 'The longer nails 32, the heads of which are seated in the washers, secure both the rubber section and the base and the nails 30 secure the rubber section to the base. Attaching nails are, of course, o1nitted from thetWo holes in thenailing die .of the heeling machine which correspond tothe previously inserted assembling nails 30. 1

the condition which frequently results when a shoe repairer attempts to remove an ordinary rubber heel Which, With the base, has been attached to a shoe at a single nailing. With such heels every nail is driven through a Washer, and

when the rubber heel is removed the nails are, of course, all pulled out with it; The

base 12, being attached only by the same.

nails, usually comes away from the heel seat of the shoe with the rubber section. It is customary then to separate the base from the Worn rubber section and to nail the base upon the heel seat ofthe shoe before 1 the new rubber heel is attached. It is usually impossible to reattach the base section so perfectly that the edge does not need refinishing. 1

Fig. 4 illustrates the conditions which exist When the improved heel of the present invention is used. Although this heel is attached at a single nailing, with all the attendant economies, the base attaching nails '34: remain undisturbed when the worn rubber section 10 is pried off and the attachment of the base 12 to the heel seat of the shoe is left secure, the shoe being ready for the immediate attachment of the new rube ber lift. j

' It should be understood that the form of designation for the nailing locations may be varied from the conical depressions 20, herein illustrated, without sacrificing theadvan tages of the invention. The important requirement isthat some sort of designation or 1 surface formation be provided which will render the marksmade by the nails passing through the heel inconspicuous or unnoticeable and this may be accomplished by breaking'up the smoothness of the surface of the tread face of the heel in any one of a variety of ways.

Otherwise it is practically impossible to avoid deface nent of the tread surface of the rubber section.

The method and'inachine for attaching the heel of the present invention are not claimed herein, the same being fully disclosed and claimed in United States Letters Patent No. 1,617,049, granted Feb. 8, 1927, upon an application of the present inventor, of which the present application is a division.-

Having described the invention, what is claimed as new and desired to be secured by.

Letters Patent is: y I V v r 1. A composite heel consisting of a rigid section and a yielding section in contact with each other, one of said sections having a tion.

projection on its contacting face and the 7 other of said sections having a recess in its contacting face, saidpro ection engaging in said recess and the contacting portions'of the projection and recess being angularlydis- 7 similar in cross sectional contour.

2. A composite heel consisting of a rigid SBOlJlOIl and a yielding section, in contact with each other, one of said sections having a plurality of spaced apart projections on its contacting face, and the other of said sections having a corresponding plurality of similarly spaced recesses in its contacting face, I

jection upon its contacting face and the other of said sections having a "recess in its contacting face, said projection and recessbeing in register with each other. and one be ng approximately clr'cular in cross section and the other 4. A composite heel consisting of a rigid base section and a yielding topv section, in

contact with each other, the base section having a substantially circular recess in its con 'tacting face, and the top section having a polygonal registering projectionfion its contacting face arranged to enter the recess.

5; A composite heel consisting of a rigid base section having a substantially circular being polygonal in cross sec- 7 recess in one face, and a yielding top'sec-' tion applied to said face and havinga rectangular projection the diagonal ofwhose.

base is greater than the diameter of the circular recess, arranged to enter said recess.

6. An unattached cementless, composite heel consisting of a rigid base section having a flat, outer face and a rubber top section havinga curved inner face, said sections being secured together in registered relation v,

[by one .or more nails.

In testimony whereof I have signed my name to this specification.

JOHN .B. HADAWAY. 

